CA2146772A1 - Ballast circuit equipped with ground fault detector - Google Patents

Ballast circuit equipped with ground fault detector

Info

Publication number
CA2146772A1
CA2146772A1 CA002146772A CA2146772A CA2146772A1 CA 2146772 A1 CA2146772 A1 CA 2146772A1 CA 002146772 A CA002146772 A CA 002146772A CA 2146772 A CA2146772 A CA 2146772A CA 2146772 A1 CA2146772 A1 CA 2146772A1
Authority
CA
Canada
Prior art keywords
frequency
ballast circuit
load
ground fault
output
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
CA002146772A
Other languages
English (en)
French (fr)
Inventor
Peter William Shackle
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Motorola Lighting Inc
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of CA2146772A1 publication Critical patent/CA2146772A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14—Circuit arrangements
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14—Circuit arrangements
    • H05B41/26—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc
    • H05B41/28—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters
    • H05B41/282—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters with semiconductor devices
    • H05B41/285—Arrangements for protecting lamps or circuits against abnormal operating conditions
    • H05B41/2851—Arrangements for protecting lamps or circuits against abnormal operating conditions for protecting the circuit against abnormal operating conditions
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S315/00—Electric lamp and discharge devices: systems
    • Y10S315/05—Starting and operating circuit for fluorescent lamp
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S315/00—Electric lamp and discharge devices: systems
    • Y10S315/07—Starting and control circuits for gas discharge lamp using transistors

Landscapes

  • Inverter Devices (AREA)
  • Emergency Protection Circuit Devices (AREA)
CA002146772A 1993-09-16 1994-08-08 Ballast circuit equipped with ground fault detector Abandoned CA2146772A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/122,824 US5363018A (en) 1993-09-16 1993-09-16 Ballast circuit equipped with ground fault detector
US08/122,824 1993-09-16

Publications (1)

Publication Number Publication Date
CA2146772A1 true CA2146772A1 (en) 1995-03-23

Family

ID=22404984

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002146772A Abandoned CA2146772A1 (en) 1993-09-16 1994-08-08 Ballast circuit equipped with ground fault detector

Country Status (7)

Country Link
US (1) US5363018A (zh)
EP (1) EP0669074A4 (zh)
JP (1) JPH08503333A (zh)
KR (1) KR950704927A (zh)
CN (1) CN1114522A (zh)
CA (1) CA2146772A1 (zh)
WO (1) WO1995008252A1 (zh)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5523653A (en) * 1995-02-10 1996-06-04 Tivoli Industries, Inc. Lighting apparatus with improved current overload protection circuit
US6188553B1 (en) 1997-10-10 2001-02-13 Electro-Mag International Ground fault protection circuit
DE19816815C1 (de) * 1998-04-16 1999-11-11 Vossloh Schwabe Gmbh Vorschaltgerät zum Betrieb einer Mehrzahl von Entladungslampen
US6291944B1 (en) 2000-05-05 2001-09-18 Universal Lighting Technologies, Inc. System and method for limiting through-lamp ground fault currents in non-isolated electronic ballasts
EP1290922A2 (en) 2000-06-01 2003-03-12 Everbrite, Inc. Gas-discharge lamp including a fault protection circuit
DE10148740B4 (de) * 2001-09-27 2013-10-24 Dr. Johannes Heidenhain Gmbh Verfahren zur Erdschlussüberwachung eines Stromrichterantriebs
US6650517B2 (en) 2002-01-22 2003-11-18 Koninklijke Philips Electronics N.V. Ballast safety circuit
WO2005081591A1 (en) * 2004-02-20 2005-09-01 Koninklijke Philips Electronics N.V. Electronic ballast with frequency detection
JP5039369B2 (ja) * 2006-12-06 2012-10-03 日立アプライアンス株式会社 冷凍装置及び冷凍装置に用いられるインバータ装置
JP6110162B2 (ja) * 2013-03-01 2017-04-05 株式会社三社電機製作所 放電ランプ点灯装置
EP3359973B1 (en) * 2015-10-05 2021-12-01 General Electric Company Method and system for locating ground faults in a network of drives
EP3582355B1 (en) * 2018-06-12 2023-12-13 Eaton Intelligent Power Limited Electrical system with ground fault detection unit
EP3582356B1 (en) * 2018-06-12 2023-12-13 Eaton Intelligent Power Limited Electrical system with ground fault detection unit
US11175349B2 (en) 2018-06-12 2021-11-16 Eaton Intelligent Power Limited Electrical system

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4939427A (en) * 1986-10-10 1990-07-03 Nilssen Ole K Ground-fault-protected series-resonant ballast
US5049787A (en) * 1986-10-10 1991-09-17 Nilssen Ole K Controlled electronic ballast
US5041766A (en) * 1987-08-03 1991-08-20 Ole K. Nilssen Power-factor-controlled electronic ballast
KR910700598A (ko) * 1989-02-10 1991-03-15 에타 인더스트리스, 인코포레이티드 가스방전램프를 구동 및 제어하기 위한 회로와 그 방법
US5089752A (en) * 1990-09-28 1992-02-18 Everbrite, Inc. High frequency luminous tube power supply with ground fault protection

Also Published As

Publication number Publication date
KR950704927A (ko) 1995-11-20
WO1995008252A1 (en) 1995-03-23
CN1114522A (zh) 1996-01-03
US5363018A (en) 1994-11-08
JPH08503333A (ja) 1996-04-09
EP0669074A4 (en) 1996-11-20
EP0669074A1 (en) 1995-08-30

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Legal Events

Date Code Title Description
EEER Examination request
FZDE Discontinued